(Frisco, TX)  --  The Seattle Sounders will move on to the Western Conference finals, after winning the semifinals on aggregate over FC Dallas.  Dallas won last night's match, 2-1, but Seattle's 3-0 win in the first leg was enough for the Sounders to advance to the finals.  Seattle will host second-seeded Colorado on Tuesday, November 22nd, with the second leg to follow on Sunday in Commerce City.